نتایج جستجو برای: wildebeest

تعداد نتایج: 209  

Journal: :Zoo biology 2014
Linda M Penfold David Powell Kathy Traylor-Holzer Cheryl S Asa

Zoos and other ex situ wildlife institutions can play an important role in species conservation by maintaining populations for education and research, as sources for potential re-introduction or reinforcement, and as ambassadors for financial support of in situ conservation. However, many regional zoo associations are realizing that current captive populations are unsustainable, with many progr...

Journal: :Journal of wildlife diseases 2003
Hong Li Katherine Gailbreath Louis C Bender Keith West Janice Keller Timothy B Crawford

Six members of the malignant catarrhal fever (MCF) virus group of ruminant rhadinoviruses have been identified to date. Four of these viruses are clearly associated with clinical disease: alcelaphine herpesvirus 1 (AlHV-1) carried by wildebeest (Connochaetes spp.); ovine herpesvirus 2 (OvHV-2), ubiquitous in domestic sheep; caprine herpesvirus 2 (CpHV-2), endemic in domestic goats; and the viru...

2018
Christopher L Dutton Amanda L Subalusky Shimon C Anisfeld Laban Njoroge Emma J Rosi David M Post

The Mara River Basin in East Africa is a trans-boundary basin of international significance experiencing excessive levels of sediment loads. Sediment levels in this river are extremely high (turbidities as high as 6,000 NTU) and appear to be increasing over time. Large wildlife populations, unregulated livestock grazing, and agricultural land conversion are all potential factors increasing sedi...

Journal: :Ecology letters 2008
Douglas T Bolger William D Newmark Thomas A Morrison Daniel F Doak

Over the last two centuries overhunting, anthropogenic barriers and habitat loss have disrupted many ungulate migrations. We review the literature on ungulate migration disruptions and find that for many species the disruption of migratory routes causes a rapid population collapse. Previous research has focused on the proximal ecological factors that might favour migration, particularly spatiot...

2011
Bjørn P Kaltenborn Julius W Nyahongo Jafari R Kideghesho Bjørn P. Kaltenborn Julius W. Nyahongo

Serengeti National Park is a world class icon for wildlife tourism attracting a diverse group of tourists from all over the world. The park has played a pivotal role in protecting large populations of wildlife species of the Eastern African savannah and the globally outstanding biological phenomena such as the annual migration of wildebeest. However, the history of the park is also characterise...

Journal: :The Onderstepoort journal of veterinary research 1984
K Janitschke A J De Vos R D Bigalke

Sera from non-infected cattle and cattle infected with Anaplasma, Babesia, Theileria and Sarcocystis were tested for antibodies to Besnoitia in ELISA and immunofluorescence tests (IFT) with Besnoitia besnoiti of blue wildebeest origin as antigen. Only 2 out of 86 sera gave false positive reactions in ELISA and none in the IFT, indicating a high specificity for the tests. Three-hundred-and-three...

Journal: :The Onderstepoort journal of veterinary research 2006
I G Horak H Golezardy A C Uys

The objective of this study was to assess the host status of African buffaloes, Syncerus caffer, for the one-host tick Rhipicephalus (Boophilus) decoloratus. To this end the R. (B.) decoloratus burdens of ten buffaloes examined in three north-eastern KwaZulu-Natal Province (KZN) nature reserves were compared with those of medium-sized to large antelope species in these reserves and in the south...

Journal: :Transboundary and emerging diseases 2015
S Pfitzer R Last I Espie M van Vuuren

Within the tribe Bovini in the subfamily Bovinae, the water buffalo (Bubalus Bubalis), American bison (Bison bison), European bison (Bubalus bonasus) and yak (Bos grunniens) are recognized as species highly susceptible to malignant catarrhal fever (MCF). In contrast, the lack of reports describing clinical MCF in the African buffalo (Syncerus caffer) whether free ranging or captive has led to a...

Journal: :PloS one 2015
Naomi S Taus Cristina W Cunha Jana Marquard Donal O'Toole Hong Li

Some members of the gamma herpesvirus genus Macavirus are maintained in nature as subclinical infections in well-adapted ungulate hosts. Transmission of these viruses to poorly adapted hosts, such as American bison and cattle, can result in the frequently fatal disease malignant catarrhal fever (MCF). Based on phylogenetic analysis, the MCF viruses (MCFV) cluster into two subgroups correspondin...

2017
Mette Løvschal Peder Klith Bøcher Jeppe Pilgaard Irene Amoke Alice Odingo Aggrey Thuo Jens-Christian Svenning

With land privatization and fencing of thousands of hectares of communal grazing areas, East Africa is struggling with one of the most radical cultural and environmental changes in its history. The 668,500-hectare Greater Mara is of crucial importance for the great migrations of large mammals and for Maasai pastoralist culture. However, the magnitude and pace of these fencing processes in this ...

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